Mitsubishi Pencil Company, Limited

Japan Synthetic Rubber Co., Ltd.

Nof Corporation

Masataka Wakihara

Shoichi Yokoyama

Mori Nagayama

Takao Kobayashi

Kentaro Suwa

Takamasa Kawakubo, Deceased

Takashi Uchida

Electrolyte for secondary battery and secondary battery

A high crystallinity powdery graphite is mixed with an organic binder capable of forming a low crystallinity carbon after firing. A high shearing force is applied to the mixture so that a composition is obtained wherein both the components are dispersed in each other under a mechano-chemical reaction. Then a paste of the composition is extruded so that the high crystallinity graphite is highly oriented. A green extrudate of the composition is fired in an inert atmosphere or a non-oxidation atmosphere at a temperature in a range between 500 and 1,100.degree. C. so that the organic binder contained therein is carbonized and a graphite-carbon carbonaceous composite of an amorphous or random layered structure is obtained, which then is ground and used as a cathode for a lithium ion secondary battery.

Cathode formed of graphite/carbon composite for lithium ion secondary

A material structure having positive polarity is disclosed. The material is produced by providing a structure wherein a mixture comprising (i) a copper Chevrel phase compound represented by the general formula:

Material structure having positive polarity

Growing community of inventors

Yokohama, Japan

Masataka Wakihara